1 definition by halibutt

(v.)
to immerse one's hand in a bucket of ice or frigid material, and shove such substances into another's rectum. Often used as a masochistic prerequisite to anal sex, the ice typically numbs the anus of the recipient.
"...yeah, she asked me to arctic fist her. At first I was thinking, what the fuck? But apparently it numbs her asshole, and it feels amazing."
by halibutt April 12, 2014
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